
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
	div{
		height:700px;
		width:720px;
		margin: 0 auto;
		}
		
	#div01{

		background-color:#F00;
		width:720px;
		height:200px;
		float:left;
		margin:0px 0px 20px 0px;
		}
	#div02{
		
		background-color:#FF0;
		width:200px;
		height:500px;
		float:left;
		margin:0px 10px 0px 0px;
		}
	#div03{
		
		background-color:#00F;
		width:500px;
		height:500px;
		float:left;
		margin:0px 0px 0px 10px;
		}
</style>
</head>

<body>
<div>
<div id="div01"></div>
<div id="div02"></div>
<div id="div03"></div>
</div>

</body>
</html>
